CN111716587A - Constant-temperature impregnation device for winding composite material fibers - Google Patents

Abstract

A constant-temperature impregnation device for winding composite fibers can be used for realizing impregnation of glass fibers and carbon fibers in the winding process and balancing fluctuation of tension values during winding reversing, can be placed between a fiber winding tension control system and a fiber winding host to cooperate with the fiber winding tension control system to complete processing of wound products, and can move transversely and longitudinally according to the size of an actual wound part. The device comprises a U-shaped impregnation tank, a constant temperature device, a low-friction guide roller set, a fiber guide device, a tension balancing device, an impregnation roller, an adjustable scraper and the like, and can solve the technical problems that in the existing wet fiber winding impregnation technology, fiber impregnation is insufficient and uneven, fluffing phenomenon is generated due to dry friction of the fiber, constant temperature effect of glue solution is poor, and uneven fiber impregnation is generated due to fluctuation of a fiber tension value to influence the quality of wound products.

Description

Constant-temperature impregnation device for winding composite material fibers

Technical Field

The invention relates to a constant-temperature impregnation device for winding composite fibers, which can be particularly used for realizing impregnation of glass fibers and carbon fibers in a winding process and balancing of tension value fluctuation during fiber winding reversing.

Background

The fiber winding process is a process of winding continuous fibers soaked in resin glue solution on a core mold according to a certain rule, curing and demolding to obtain a composite material product, and is mainly divided into dry winding, wet winding and semi-dry winding. The wet winding is a forming process that the twistless roving is directly wound on a core mould after being dipped with glue, a dipping device is positioned between a fiber paying-off system and a winding host machine, a dipping link of fibers before being wound on the core mould needs to be completed, and the process requires that the fibers are fully dipped with uniform and controllable dipping amount. Regarding the wet winding and dipping technology of fiber, the known technologies are a direct dipping method and a rubber roller contact method, and the direct dipping method is the dipping technology with the simplest equipment and the widest application range in the wet winding process at present. The method comprises the steps of continuously and directly feeding one or more bundles of one-way tensioned fibers led out from a yarn group into a glue tank for dipping glue solution, then extruding the glue solution through an extruding roller to enable the glue solution to be uniform, and scraping redundant glue solution by using a doctor blade to obtain the glue dipped fibers directly used for wet winding; the rubber roller contact method is developed from a direct dipping method through certain improvement, and a dipping device of the rubber roller contact method is slightly more complicated than that of the direct dipping method. The rubber roller contact method is to immerse the dipping roller into the glue solution and to contact the exposed roller surface with fiber. The glue dipping roller is rotated to enable the surface of the roller to be stained with glue solution, the fiber is continuously dipped, the fiber is not directly dipped into the glue groove, the fiber can be more uniformly dipped with the glue solution, and excessive glue consumption is avoided. Although the two wet winding impregnation technologies are simple and convenient to operate, simple in tooling, low in cost and high in production efficiency, the fiber is wound immediately after impregnation, the glue content of the product is difficult to control and detect in the winding process, and the defects of bubbles, gaps and the like are easily formed in the product due to insufficient and uneven impregnation of the fiber; the soaking degree of the fiber can be greatly influenced by the instability of the constant temperature effect of the glue solution; a large number of guide roller devices and fiber guide devices on the equipment are easy to damage fibers, and the fluffing phenomenon occurs; when the spiral winding mode is adopted for winding, the tension of the fiber in gum dipping is suddenly increased or reduced due to the winding reversing, the uniformity of the fiber gum dipping is influenced, and in addition, the quality of a wound product is also adversely affected by the fluctuation of the tension value. In order to solve the problems, the invention of the novel constant-temperature impregnation device has important significance.

Disclosure of Invention

In order to solve the technical problems that the fiber impregnation is insufficient and uneven, the fiber generates fluffing phenomenon due to dry friction, the constant temperature effect of the glue solution is poor and the fiber impregnation is uneven due to the fluctuation of the tension value of the fiber in the existing fiber wet winding impregnation technology, so that the quality of a wound product is influenced, the invention provides a constant temperature impregnation device for winding the composite material fiber, which adopts a constant temperature water tank device to keep the constant temperature of the glue solution; each fiber guide part in the device adopts large-arc high-precision polishing processing and carries out hard chromium plating treatment on the surface, and a plurality of metal thin shafts subjected to plating treatment are arranged on the circumference of each winding guide roller mechanism; the glue scraping device is designed into an adjustable structure so as to meet the requirements of the glue dipping amount of fibers made of different materials; and one group of the guide roller groups is provided with a balance cylinder, is controlled by a two-position five-way electromagnetic valve and executes a reversing action switching command of the piston rod according to the change of the tension value of the fiber.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a be used for winding constant temperature gumming device of combined material fibre comprises base, constant temperature equipment, U type glue groove, deflector, guide ring, side riser, frame, deflector roll 1, balance cylinder, cylinder support, tension balance roller, articulated seat, connecting plate, separated time comb, deflector roll 2, deflector roll 3, gumming roller, adjustable scraper, bearing gland, sealing washer, roller pole, axle sleeve, bearing, roller, its characterized in that altogether: the base main body of the gum dipping device is formed by assembling aluminum profiles, the upper part is connected with an installation panel for installing a U-shaped gum groove, a side vertical plate and a frame, the lower part is connected with an installation panel for installing a constant temperature device, and universal casters are arranged below the base; the constant temperature device heats and controls the constant temperature of the glue solution in the U-shaped glue tank by using oil or water as a heat transfer medium, a water outlet and a water return port are arranged on the constant temperature device and are respectively connected with a water inlet and a water outlet of the U-shaped glue tank, the medium is always in a flowing state in a cavity below the constant temperature device and the U-shaped glue tank, and a temperature sensor is arranged in the constant temperature device to monitor the temperature of the medium in real time; the U-shaped glue tank is arranged above the base and used for containing glue, the inside of the tank is designed into a U-shaped structure so as to improve the space utilization rate, and a closed cavity is arranged below the tank and used for storing and flowing media; the guide plate is arranged at the wire inlet end of the U-shaped glue groove, is a main structure for guiding fibers, and has the function of enabling the fibers to wind on the guide roller 1 according to a specified position after entering the glue dipping device; the guide ring is arranged in a circular hole of the guide plate in an interference fit manner, two ends of the inner hole are subjected to large-arc transition fillet treatment and high-precision polishing treatment, the surface is plated with hard chrome, and the number of the guide ring is increased or decreased according to the number of wound fiber strands; the side vertical plate is arranged above the base and is used for supporting the shaft ends of the guide roller 1, the adjustable scraper, the glue dipping roller, the guide roller 2 and the guide roller 3; the frame is formed by splicing aluminum profiles and used for mounting a tension balancing device component, namely an air cylinder support and a connecting plate component, and the tension balancing device can be adjusted by changing the length of a lower support of the frame; the guide roller 1 is composed of a bearing gland, a sealing ring, a roller rod, a shaft sleeve, a bearing and a roller shaft, wherein two ends of the roller shaft are fixed on the side vertical plate, the roller rods are uniformly distributed on the circumference of the bearing gland, two ends of the roller shaft are connected with the bearing gland through threads, the surface of the roller shaft is subjected to plating treatment, the sealing ring is embedded in the bearing gland to prevent glue from entering the shaft sleeve, the bearing gland, the shaft sleeve and the roller rod synchronously rotate along with the outer ring of the bearing under the action of friction force of fibers and the 12 roller rods to complete the guidance of a specified path of the fibers, and the structural principles of a tension balance roller, a guide roller 2, a guide roller; the tension balancing device consists of a balancing cylinder, a cylinder support, a tension balancing roller, a hinged seat and a connecting plate, wherein the balancing cylinder executes the extending and retracting actions of the piston rod according to the sharp increase or sharp decrease of the tension when the fiber is wound and reversed so as to realize the function of balancing the fiber tension fluctuation of the device; the branching comb is arranged in the direction of a wire outlet end of the U-shaped glue groove, and the fibers after glue dipping are guided by utilizing gaps among the combs, so that the fibers are separated from each other in the running process and are not adhered to each other, and the fibers are smoothly conveyed to a winding position of a host machine; the dip roll is formed by welding a shaft sleeve and an end cover, the interior of the dip roll is of a hollow structure, the surface of the dip roll is plated with hard chrome, two shaft ends are fixed on vertical plates on two sides and can freely rotate under small friction force, a bus in the vertical direction of the dip roll has a linear distance of 5mm with the lowest point of a U-shaped glue tank, the utilization rate of glue solution is improved, two shaft ends of an adjustable scraper are clamped on the vertical plates, the angle of the adjustable scraper can be freely adjusted and locked, the adjustment of the circumferential gap between a cutting edge and the dip roll is realized, and the device has the functions of controlling the dip amount and removing air bubbles in the glue solution.

The whole glue dipping device is positioned between a fiber tension control system and a fiber winding host machine, is mainly used for a glue dipping link in a fiber winding process, has a balance function of tension fluctuation during winding reversing, is matched with a pay-off system and the winding host machine to jointly complete the processing of wound products, and can move transversely and longitudinally according to the actual workpiece condition.

The invention has the advantages that oil or water is used as a heat transfer medium to quickly heat the glue solution in the U-shaped glue tank and then perform high-precision constant temperature control, the temperature control range precision of the glue solution is higher, and the requirements of a high-quality glue dipping process are met; in the device, the fiber guide part and each guide roller device greatly reduce the friction loss between the fiber and the metal guide part and improve the fiber abrasion degree; the adjustable glue scraping device can control the glue dipping amount and the glue dipping uniformity and can remove a large amount of bubbles generated in the glue solution; the tension balancing device of the guide roller group can balance the tension value of the fiber which is increased or reduced sharply during winding and reversing, further improve the uniformity of fiber gum dipping and improve the quality defect of a wound product caused by tension fluctuation.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a general structure diagram of a constant-temperature impregnation apparatus

FIG. 2 schematic diagram of the impregnation of fibers

FIG. 3 is a cross-sectional view of a guide roller device in a constant-temperature impregnation apparatus

In the figure: 1. the automatic glue spreading machine comprises a base, 2 parts of a constant temperature device, 3 parts of a U-shaped glue groove, 4 parts of a guide plate, 5 parts of a guide ring, 6 parts of a side vertical plate, 7 parts of a frame, 8 parts of guide rollers 1 and 9 parts of a balance cylinder, 10 parts of a cylinder support, 11 parts of a tension balance roller, 12 parts of a hinged seat, 13 parts of a connecting plate, 14 parts of a branching comb, 15 parts of guide rollers 2 and 16 parts of guide rollers 3 and 17 parts of a glue dipping roller, 18 parts of an adjustable scraper, 19 parts of fibers, 20 parts of a bearing gland, 21 parts of a sealing ring, 22 parts of a roller rod, 23 parts of a shaft sleeve, 24 parts.

Detailed Description

In fig. 1 and 3, a main body of a base (1) of the gum dipping device is formed by assembling aluminum profiles, an installation panel is connected above the gum dipping device and used for installing a U-shaped gum trough (3), a side vertical plate (6) and a frame (7), an installation panel is connected below the gum dipping device and used for installing a constant temperature device (2), and universal casters are arranged below the base (1); the constant temperature device (2) uses oil or water as a heat transfer medium to heat and control the constant temperature of the glue solution in the U-shaped glue tank (3), a water outlet and a water return port are arranged on the constant temperature device and are respectively connected with a water inlet and a water outlet of the U-shaped glue tank (3), the medium is always in a flowing state in a cavity below the constant temperature device (2) and the U-shaped glue tank (3), and a temperature sensor is arranged in the constant temperature device (2) to monitor the temperature of the medium in real time; the U-shaped glue tank (3) is arranged above the base (1) and is used for containing glue solution, the inside of the tank is designed into a U-shaped structure so as to improve the space utilization rate, and a closed cavity is arranged below the tank and is used for storing and flowing media; the guide plate (4) is arranged at the wire inlet end of the U-shaped glue groove (3), is a main structure for guiding fibers, and has the function of enabling the fibers to wind on the guide rollers 1 (8) according to the designated position after entering the glue dipping device; the guide ring (5) is arranged in a round hole of the guide plate (4) in an interference fit manner, two ends of an inner hole are subjected to large-arc transition fillet treatment and high-precision polishing treatment, the surface is plated with hard chrome, and the number of the guide ring is increased or decreased according to the number of wound fiber strands; the side vertical plate (6) is arranged above the base (1) and is used for supporting the shaft ends of a guide roller 1 (8), an adjustable scraper (18), a glue dipping roller (17), a guide roller 2 (15) and a guide roller 3 (16); the frame (7) is formed by splicing aluminum profiles and used for mounting components of a tension balancing device, namely an air cylinder support (10) and a connecting plate (13), and the tension balancing device can be adjusted by changing the length of a lower support of the frame (7); the guide roller 1 (8) consists of a bearing gland (20), a sealing ring (21), a roller rod (22), a shaft sleeve (23), a bearing (24) and roller shafts (25), wherein two ends of the roller shafts (25) are fixed on the side vertical plate (6), the roller rods (22) are 12 in number and are uniformly distributed on the circumference of the bearing gland (20), two ends of the roller shafts are connected with the bearing gland (20) through threads, the surface of the fiber guide roller is plated, a sealing ring (21) is inlaid in a bearing gland (20) to prevent glue from entering the shaft sleeve (23), the bearing gland (20), the shaft sleeve (23) and a roller rod (22) synchronously rotate along with the outer ring of a bearing (24) under the action of friction force of fibers (19) and 12 roller rods (22) to complete the guide of a specified path of the fibers (19), and the structural principles of a tension balance roller (11), a guide roller 2 (15), a guide roller 3 (16) and a glue dipping roller (17) are the same as those of the guide roller 1 (8); the tension balancing device consists of a balancing cylinder (9), a cylinder support (10), a tension balancing roller (11), a hinged seat (12) and a connecting plate (13), wherein the balancing cylinder (9) executes the stretching and retracting actions of the piston rod according to the sharp increase or sharp decrease of the tension during the fiber winding reversing so as to realize the function of balancing the fiber tension value fluctuation of the device; the branching comb (14) is arranged in the direction of a wire outlet end of the U-shaped glue groove (3), and the fibers (19) after gum dipping are guided by utilizing gaps among combs, so that the fibers (19) are separated from each other and are not adhered during operation and are smoothly conveyed to a winding position of a host machine; the dip roll (17) is formed by welding a shaft sleeve and an end cover, the interior of the dip roll is of a hollow structure, the surface of the dip roll is plated with hard chrome, two shaft ends are fixed on vertical plates (6) on two sides and can freely rotate under the drive of smaller friction force, a bus in the vertical direction of the dip roll (17) has a linear distance of 5mm from the lowest point of a U-shaped glue groove (3), the utilization rate of glue solution is improved, two shaft ends of an adjustable scraper (18) are clamped on the vertical plates (6) and can be adjusted and locked at any angle by the adjustable scraper (18), the adjustment of the circumferential gap between a cutting edge and the dip roll (17) is realized, and the device has the functions of controlling the dip amount and removing air bubbles in the glue solution.

In fig. 2, the fiber (19) passes through the lower part of the guide roller 1 (8), the upper part of the dipping roller (17), the lower part of the guide roller 3 (16), the upper part of the tension balance roller (11) and the lower part of the guide roller 2 (15) in sequence to finally form a winding path of the fiber in the dipping device, when tension is applied to the fiber (19), each roller can freely rotate under the action of friction force, the lower part of the dipping roller (17) is contacted with glue solution, the surface of the fiber is fully impregnated with a uniform glue solution layer without bubbles through an adjustable scraper (18), and finally the dipping of the fiber is finished.

Claims (1)

1. The main body of a base (1) of the gum dipping device is formed by assembling aluminum profiles, a mounting panel is connected above the gum dipping device and used for mounting a U-shaped gum trough (3), a side vertical plate (6) and a frame (7), a mounting panel is connected below the gum dipping device and used for mounting a constant temperature device (2), and universal casters are mounted below the base (1); the constant temperature device (2) uses oil or water as a heat transfer medium to heat and control the constant temperature of the glue solution in the U-shaped glue tank (3), a water outlet and a water return port are arranged on the constant temperature device and are respectively connected with a water inlet and a water outlet of the U-shaped glue tank (3), the medium is always in a flowing state in a cavity below the constant temperature device (2) and the U-shaped glue tank (3), and a temperature sensor is arranged in the constant temperature device (2) to monitor the temperature of the medium in real time; the U-shaped glue tank (3) is arranged above the base (1) and is used for containing glue solution, the glue tank is of a U-shaped structure, and a closed cavity for storing media is arranged below the glue tank; the guide plate (4) is arranged at the wire inlet end of the U-shaped glue groove (3), is a main structure for guiding fibers, and has the function of enabling the fibers to wind on the guide rollers 1 (8) according to the designated position after entering the glue dipping device; the guide ring (5) is arranged in a round hole of the guide plate (4) in an interference fit mode, two ends of an inner hole are subjected to large-arc transition fillet treatment and high-precision polishing treatment, the surface is plated with hard chrome, and the number of the guide ring is increased or decreased according to the number of wound fiber strands; the side vertical plate (6) is arranged above the base (1) and is used for supporting the shaft ends of a guide roller 1 (8), an adjustable scraper (18), a glue dipping roller (17), a guide roller 2 (15) and a guide roller 3 (16); the frame (7) is formed by splicing aluminum profiles and is used for installing tension balancing device components such as a cylinder support (10) and a connecting plate (13), and the tension balancing device can be adjusted by changing the length of a lower support of the frame (7); the guide roller 1 (8) consists of a bearing gland (20), a sealing ring (21), a roller rod (22), a shaft sleeve (23), a bearing (24) and roller shafts (25), wherein two ends of the roller shafts (25) are fixed on the side vertical plate (6), the roller rods (22) are 12 in number and are uniformly distributed on the circumference of the bearing gland (20), two ends of the roller shafts are connected with the bearing gland (20) through threads, the surface of the fiber guide roller is plated, a sealing ring (21) is inlaid in a bearing gland (20) to prevent glue from entering the shaft sleeve (23), the bearing gland (20), the shaft sleeve (23) and a roller rod (22) synchronously rotate along with the outer ring of a bearing (24) under the action of friction force of fibers (19) and 12 roller rods (22) to complete the guide of a specified path of the fibers (19), and the structural principles of a tension balance roller (11), a guide roller 2 (15), a guide roller 3 (16) and a glue dipping roller (17) are the same as those of the guide roller 1 (8); the tension balancing device consists of a balancing cylinder (9), a cylinder support (10), a tension balancing roller (11), a hinged seat (12) and a connecting plate (13), wherein the balancing cylinder (9) executes the stretching and retracting actions of the piston rod according to the sharp increase or sharp decrease of the tension during the fiber winding reversing so as to realize the function of balancing the fiber tension value fluctuation of the device; the branching comb (14) is arranged in the direction of a wire outlet end of the U-shaped glue groove (3), and the fibers (19) after gum dipping are guided by utilizing gaps among combs, so that the fibers (19) are separated from each other and are not adhered during operation and are smoothly conveyed to a winding position of a host machine; the dip roller (17) is formed by welding a shaft sleeve and an end cover, the interior of the dip roller is of a hollow structure, the surface of the dip roller is plated with hard chrome, two shaft ends are fixed on vertical plates (6) on two sides and can freely rotate under the drive of smaller friction force, a straight line distance of 5mm is reserved between a bus and the lowest point of the U-shaped glue groove (3) in the vertical direction of the dip roller (17), the utilization rate of glue liquid is improved, two shaft ends of the adjustable scraper (18) are clamped on the vertical plates (6), the adjustable scraper (18) can be adjusted and locked at any angle, and the adjustment of the circumferential gap between a cutting edge and the dip roller (17) is realized.

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